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<p>[QUOTE="jaytant, post: 184133, member: 6902"]Wow, thanks Tom. Didn't realize that they were interference colors! Nice to know. I assume the oxides are non-conducting so the voltage applied set point limits the thickness of the layer. Maybe I could try it once myself... </p><p>You once made coins in halfnium (Blood of S'urak) and tantalum I see... but they are not available anymore.. are there any future plans of remaking these?</p><p><br /></p><p>Aidan, the Pobjoy Mint started making coins in Titanium back in 1999... purely collectors items. The Gibraltar Millennium issue (5 pounds) was a silver colored coin (can get one on eBay for about $40 or so)... awesome to handle, they are incredibly light even though they seem to be the size of a normal 1 oz. silver bullion coin. They issued blue and red versions later (to commemorate stamps). Recently they have started making bimetals with Titanium/silver and titanium/gold. They had once stated in some newsletter that its tough to make blanks (as Tom mentions above) and the metal would kill the die about 100 times faster than silver so one should never expect titanium to be in circulating coins in the future...[/QUOTE]</p><p><br /></p>
[QUOTE="jaytant, post: 184133, member: 6902"]Wow, thanks Tom. Didn't realize that they were interference colors! Nice to know. I assume the oxides are non-conducting so the voltage applied set point limits the thickness of the layer. Maybe I could try it once myself... You once made coins in halfnium (Blood of S'urak) and tantalum I see... but they are not available anymore.. are there any future plans of remaking these? Aidan, the Pobjoy Mint started making coins in Titanium back in 1999... purely collectors items. The Gibraltar Millennium issue (5 pounds) was a silver colored coin (can get one on eBay for about $40 or so)... awesome to handle, they are incredibly light even though they seem to be the size of a normal 1 oz. silver bullion coin. They issued blue and red versions later (to commemorate stamps). Recently they have started making bimetals with Titanium/silver and titanium/gold. They had once stated in some newsletter that its tough to make blanks (as Tom mentions above) and the metal would kill the die about 100 times faster than silver so one should never expect titanium to be in circulating coins in the future...[/QUOTE]
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